Retractable brush rod clamping point automatic forming device

Abstract

The invention discloses a retractable brush rod clamping point automatic forming device, which comprises an outer base, an upper base, a lower base and a lower base, the outer base is provided with a sliding groove and a mounting groove, the sliding groove is of a conical structure with a wide upper part and a narrow lower part, and the mounting groove is formed in the bottom surface of the sliding groove; a forming groove for accommodating the brush rod is formed in the inner core rod; wherein the inner core rod is elastically connected to the mounting groove, a protruding part is arranged on the outer side face of the inner core rod and is of a circular-truncated-cone-shaped structure with the wide upper portion and the narrow lower portion, a plurality of notches are formed in the side wall of the forming groove in the circumferential direction, the notches extend downwards from the upper end face of the inner core rod, and the notches are used for dividing the side wall of the forming groove into a plurality of forming units; and a forming convex point is arranged on the inner wall of each forming unit. Compared with the prior art, the problem that the brush rod of an existing cosmetic brush is difficult to accurately machine a groove for a clamping point is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cosmetic brush rod processing, and in particular to a retractable brush rod clamping point automatic forming device. Background Art

[0002] When using cosmetics, liquid cosmetic ingredients are usually applied with the help of a brush, and the bristles of the brush are used to ensure uniform application.

[0003] Cosmetic containers and cosmetic brushes are usually fixed to the cover or other parts to avoid loss. Therefore, in order to fix the cosmetic brush to other parts, a recessed portion is made on the brush rod of the cosmetic brush to facilitate connection and fixation. However, due to the small diameter of the brush rod of the cosmetic brush, it is difficult to accurately control the processing depth and processing position of the recessed portion. Summary of the invention

[0004] The purpose of the present invention is to provide a retractable brush rod clamping point automatic forming device to solve the problem that it is difficult to accurately process the clamping point groove of the brush rod of the existing cosmetic brush.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a retractable brush rod clamping point automatic forming device, comprising:

[0006] The outer base is provided with a slide groove and a mounting groove, the slide groove is a cone-shaped structure that is wide at the top and narrow at the bottom, and the mounting groove is arranged on the bottom surface of the slide groove;

[0007] An inner core rod, on which a forming groove for receiving the brush rod is provided;

[0008] Among them, the inner core rod is elastically connected to the mounting groove, and a protrusion is arranged on the outer surface of the inner core rod. The protrusion is a truncated cone-shaped structure that is wide at the top and narrow at the bottom. A plurality of circumferentially arranged notches are arranged on the side wall of the molding groove. The notches extend downward from the upper end surface of the inner core rod. The notches are used to separate the side wall of the molding groove into a plurality of molding units. A molding convex point is arranged on the inner wall of a molding unit.

[0009] As a further description of the above technical solution:

[0010] A spring is arranged in the installation groove, one end of the spring contacts the inner core rod, and the other end opposite to the spring contacts the bottom surface of the installation groove.

[0011] As a further description of the above technical solution:

[0012] The threaded rod of the fixing screw passes through the through hole on the bottom surface of the installation groove and is threadedly connected to the inner core rod. The back of the outer base is provided with a receiving groove for receiving the head of the fixing screw, and the spring sleeve is arranged on the threaded rod.

[0013] As a further description of the above technical solution:

[0014] A round rod is arranged between the head of the fixing screw and the threaded rod, the diameter of the threaded rod is smaller than the diameter of the round rod, and the spring is sleeved on the round rod.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. In the present invention, when it is necessary to process a pit on the outer surface of the brush rod of the makeup brush, the brush rod is first inserted into the molding groove of the inner core rod, and then the brush rod is continued to be inserted downward, the inner core rod is pressed downward into the outer base, and the raised portion on the outer side of the inner core rod is squeezed by the inner wall of the slide groove, and a plurality of molding units are squeezed close to each other and fit together. During this downward pressing process, the molding convex points on the inner wall of the molding unit are squeezed out of the outer surface of the brush rod; the brush rod is released, and the inner core rod is reset upward under the action of elastic force. As the inner core rod moves upward, the raised portion on the outer side of the inner core rod is no longer squeezed by the inner wall of the slide groove, and finally extends out of the slide groove. During this rising process, a plurality of molding units are stretched outward and reset due to the elastic deformation ability of the inner core rod itself, and the molding convex points on the inner wall of the molding unit are separated from the outer surface of the brush rod, and then the brush rod can be pulled out.

[0017] 2. In the present invention, after the brush rod of the cosmetic brush is pressed down and inserted into the automatic card point forming device, the card point is accurately processed on the brush rod surface, and then the brush rod is loosened, so that the brush rod can be released from the automatic card point forming device. The card point processing is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of a retractable brush rod clamping point automatic forming device.

[0020] Figure 2 It is a schematic diagram of the structural disassembly of a retractable brush rod clamping point automatic forming device.

[0021] Figure 3 It is a cross-sectional view of a retractable brush rod clamping point automatic forming device.

[0022] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0023] Legend:

[0024] 1. outer base; 11. slide groove; 111. second chamfered surface; 12. mounting groove; 13. storage groove;

[0025] 2. inner core rod; 21. forming groove; 22. raised portion; 23. notch; 24. forming convex point; 25. first chamfered surface;

[0026] 3. Spring;

[0027] 4. Fixing screw; 41. Threaded rod; 42. Round rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] See also Figure 1-4 The present invention provides a technical solution: a retractable brush rod clamping point automatic forming device, comprising:

[0035] The outer base 1 is provided with a slide groove 11 and a mounting groove 12, the slide groove 11 is a cone-shaped structure that is wide at the top and narrow at the bottom, and the mounting groove 12 is arranged on the bottom surface of the slide groove 11;

[0036] An inner core rod 2, on which a forming groove 21 for receiving the brush rod is provided;

[0037] Among them, the inner core rod 2 is elastically connected to the mounting groove 12, and a protrusion 22 is arranged on the outer surface of the inner core rod 2. The protrusion 22 is a truncated cone-shaped structure that is wide at the top and narrow at the bottom. A plurality of circumferentially arranged notches 23 are arranged on the side wall of the molding groove 21. The notches 23 extend downward from the upper end surface of the inner core rod 2. The notches 23 are used to separate the side walls of the molding groove 21 into a plurality of molding units, and a molding convex point 24 is arranged on the inner wall of a molding unit.

[0038] After the brush rod of the cosmetic brush is pressed down and inserted into the automatic card point forming device, the card point is accurately processed on the brush rod surface, and then the brush rod is released, the brush rod can be released from the automatic card point forming device. The card point processing is simple and efficient.

[0039] Four notches 23 arranged circumferentially are provided on the side wall of the molding groove 21, thereby forming four independent molding units, so as to machine four recesses for installation on the outer surface of the cosmetic brush rod.

[0040] The number of the notches 23 can be flexibly set according to the number of the pits processed on the outer surface of the brush rod of the cosmetic brush as needed.

[0041] A first chamfered surface 25 is provided at the top opening of the forming groove 21 to facilitate the brush rod to be inserted into the forming groove 21 of the inner core rod 2 to avoid collision damage.

[0042] A second chamfered surface 111 is provided at the top opening of the slide groove 11 to prevent the inner core rod 2 from being damaged by friction with the top of the slide groove 11 during the up and down movement, thereby facilitating the downward squeezing of the inner core rod 2.

[0043] Working principle: Under normal conditions, the protrusion 22 on the outer surface of the inner core rod 2 extends out of the chute 11, and the plurality of molding units on the inner core rod 2 are in a separated state;

[0044] When it is necessary to process a pit on the outer surface of the brush rod of the cosmetic brush, the brush rod is first inserted into the molding groove 21 of the inner core rod 2, and then the brush rod is further inserted downward, the inner core rod 2 is pressed downward into the outer base 1, and the convex portion 22 on the outer surface of the inner core rod 2 is squeezed by the inner wall of the slide groove 11, and several molding units are squeezed close to each other and fit together. During this downward pressing process, the molding convex point 24 on the inner wall of the molding unit squeezes out a pit on the outer surface of the brush rod;

[0045] Release the brush rod, and the inner core rod 2 will reset upward under the action of elastic force. As the inner core rod 2 moves upward, the protrusion 22 on the outer surface of the inner core rod 2 is no longer squeezed by the inner wall of the slide groove 11, and finally extends out of the slide groove 11. During this rising process, several molding units are stretched outward and reset due to the elastic deformation ability of the inner core rod 2 itself, and the molding protrusions 24 on the inner wall of the molding unit are separated from the outer surface of the brush rod, and then the brush rod can be pulled out.

[0046] Example 2

[0047] This embodiment further provides the following improved technical solutions based on the above embodiment: a spring 3 is provided in the installation groove 12, one end of the spring 3 contacts the inner core rod 2, and the other end contacts the bottom surface of the installation groove 12. The spring 3 is squeezed during the downward pressing of the inner core rod 2 to provide power for the upward reset of the inner core rod 2.

[0048] The threaded rod 41 of the fixing screw 4 passes through the through hole on the bottom surface of the installation groove 12 and is threadedly connected to the inner core rod 2. The back side of the outer base 1 is provided with a receiving groove 13 for receiving the head of the fixing screw 4, and the spring 3 is sleeved on the threaded rod 41.

[0049] The fixing screw 4 realizes the detachable connection between the inner core rod 2 and the outer base 1 , and the fixing screw 4 limits the upward distance of the inner core rod 2 to prevent the inner core rod 2 from being separated from the outer base 1 .

[0050] Example 3

[0051] This embodiment further provides the following improved technical solution based on the above embodiment: a round rod 42 is provided between the head of the fixing screw 4 and the threaded rod 41 , the diameter of the threaded rod 41 is smaller than the diameter of the round rod 42 , and the spring 3 is sleeved on the round rod 42 .

[0052] The end surface of the round rod 42 is used to effectively control the threaded connection between the inner core rod 2 and the threaded rod 41, thereby preventing the threaded rod 41 from extending into the forming groove 21 and preventing the inner core rod 2 from slipping with the fixing screw 4 during the pressing process, thereby ensuring the reliability of the threaded connection. In addition, the spring 3 contacts the smooth outer surface of the round rod 42, thereby preventing the spring 3 from being damaged.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A retractable brush rod clamping point automatic forming device, characterized in that: include: An outer base, on which a slide groove and a mounting groove are arranged, wherein the slide groove is a cone-shaped structure that is wide at the top and narrow at the bottom, and the mounting groove is arranged on the bottom surface of the slide groove; An inner core rod, on which a forming groove for receiving the brush rod is provided; Among them, the inner core rod is elastically connected to the mounting groove, and a protrusion is arranged on the outer side surface of the inner core rod, and the protrusion is a truncated cone-shaped structure that is wide at the top and narrow at the bottom. A plurality of circumferentially arranged notches are arranged on the side wall of the molding groove, and the notches extend downward from the upper end surface of the inner core rod. The notches are used to separate the side walls of the molding groove into a plurality of molding units, and a molding convex point is arranged on the inner wall of one of the molding units.

2. The retractable brush rod clamping point automatic forming device according to claim 1, characterized in that: A spring is arranged in the installation groove, one end of the spring contacts the inner core rod, and the other end opposite to the spring contacts the bottom surface of the installation groove.

3. The retractable brush rod clamping point automatic forming device according to claim 2, characterized in that: The threaded rod of the fixing screw passes through the through hole on the bottom surface of the installation groove and is threadedly connected to the inner core rod. The back of the outer base is provided with a receiving groove for receiving the head of the fixing screw, and the spring is sleeved on the threaded rod.

4. The retractable brush rod clamping point automatic forming device according to claim 3, characterized in that: A round rod is arranged between the fixing screw head and the threaded rod, the diameter of the threaded rod is smaller than the diameter of the round rod, and the spring is sleeved on the round rod.

5. The retractable brush rod clamping point automatic forming device according to claim 1, characterized in that: The side wall of the forming groove is provided with four notches arranged circumferentially.

6. The retractable brush rod clamping point automatic forming device according to claim 1, characterized in that: A first chamfered surface is arranged at the top opening of the forming groove.

7. The retractable brush rod clamping point automatic forming device according to claim 1, characterized in that: A second chamfered surface is arranged at the top opening of the slide groove.

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